In SPC [1]}, the DMD array optically multiplexes the scene onto a single pixel sensor. By changing the orientation of the array, we will get different multiplexing patterns, which results in different measurements. If \(\mathbf {y}\)  is the vector of \(m\)  single pixel measurements from SPC and \(\Phi \)  is the \(m \times n^2\)  compressive sensing matrix, then we have the forward model as:
\(\mathbf {y}= \mathbf {\Phi } \mathbf {x}.\) 
